linux-kernel - Re: [PATCH] cpu/hotplug: Non-SMP machines do not make use of booted

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Date:   Tue, 14 Aug 2018 14:43:50 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     abelvesa@...ux.com
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        brendan.jackman@....com, Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cpu/hotplug: Non-SMP machines do not make use of booted_once

On Tue, Aug 14, 2018 at 2:26 PM Abel Vesa <abelvesa@...ux.com> wrote:
>
> Following commit breaks the non-SMP builds.

Thanks, we obviously don't do a lot of coverage of UP any more.

I'm not sure if we should just move the bool's to be bitfields and
make them all available unconditionally, because the #ifdef in code
annoys me.

I'll think about it. The x86 maintainers are all on vacation this
week, and I don't want to disturb them, so I'll fix it one way or
another.

             Linus